org.springframework.web.servlet.handler

Class HandlerMappingIntrospector

java.lang.Object

org.springframework.web.servlet.handler.HandlerMappingIntrospector

All Implemented Interfaces:

CorsConfigurationSource

public class HandlerMappingIntrospector
extends Object
implements CorsConfigurationSource

Helper class to get information from the HandlerMapping that would serve a specific request.

Provides the following methods:

• getMatchableHandlerMapping(javax.servlet.http.HttpServletRequest) — obtain a HandlerMapping to check request-matching criteria against.
• getCorsConfiguration(javax.servlet.http.HttpServletRequest) — obtain the CORS configuration for the request.

Since:

4.3.1

Author:

Rossen Stoyanchev

Constructor Summary

Constructors

Constructor and Description
HandlerMappingIntrospector(ApplicationContext context) Constructor that detects the configured HandlerMappings in the given ApplicationContext or falls back on "DispatcherServlet.properties" like the DispatcherServlet.

Method Summary

Modifier and Type	Method and Description
CorsConfiguration	getCorsConfiguration(HttpServletRequest request) Return a CorsConfiguration based on the incoming request.
List<HandlerMapping>	getHandlerMappings() Return the configured HandlerMapping's.
MatchableHandlerMapping	getMatchableHandlerMapping(HttpServletRequest request) Find the HandlerMapping that would handle the given request and return it as a MatchableHandlerMapping that can be used to test request-matching criteria.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HandlerMappingIntrospector

public HandlerMappingIntrospector(ApplicationContext context)

Constructor that detects the configured HandlerMappings in the given ApplicationContext or falls back on "DispatcherServlet.properties" like the DispatcherServlet.

Method Detail

getHandlerMappings

public List<HandlerMapping> getHandlerMappings()

Return the configured HandlerMapping's.

getMatchableHandlerMapping

public MatchableHandlerMapping getMatchableHandlerMapping(HttpServletRequest request)
                                                   throws Exception

Find the HandlerMapping that would handle the given request and return it as a MatchableHandlerMapping that can be used to test request-matching criteria.

If the matching HandlerMapping is not an instance of MatchableHandlerMapping, an IllegalStateException is raised.

Parameters:

request - the current request

Returns:

the resolved matcher, or null

Throws:

Exception - if any of the HandlerMapping's raise an exception

getCorsConfiguration

public CorsConfiguration getCorsConfiguration(HttpServletRequest request)

Description copied from interface: CorsConfigurationSource

Return a CorsConfiguration based on the incoming request.

Specified by:

getCorsConfiguration in interface CorsConfigurationSource

Returns:

the associated CorsConfiguration, or null if none